Potable Water
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6 Terms
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Potable water
water that is safe to drink
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Whren does most UK’s water come from?
fresh water from rivers or rain
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Requirements of potable water
low levels of dissolved solids
no harmful microbes
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How is rain water treated?
Pass water through filter beds to remove large substance e.g. leaves
Sterilise water with chlorine/ ozone/ UV to remove harmful microbes
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How to desalinate sea water?
distillation
reverse osmosis
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Disadvantages of desalination
require lots of energy so expensive
Note 
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